| Meaning | steel who characteristics / characteristics are determined by the addition of other elements in addition to carbon. |
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| Narrower | chrome-nickel steel, Elinvar | Elinvar is a trademark for a kind of steel used for watch springs because its elasticity is constant over a wide range of temperatures |
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| chrome-tungsten steel | A steel alloy made with chromium and tungsten |
| manganese steel, austenitic manganese steel | A steel with a relatively large component (10-14%) of manganese |
| molybdenum steel | steel containing 10-15% molybdenum |
| nickel steel | An alloy steel containing nickel |
| stainless steel, stainless, chromium steel | steel containing chromium that makes it resistant to corrosion |
| tool steel | alloy steel that is suitable for making tools |
| tungsten steel, wolfram steel | A very hard heat-resistant steel containing tungsten |
| vanadium steel | steel alloyed with vanadium for greater strength and high-temperature stability |
| Broader | steel | An alloy of iron with small amounts of carbon |
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| Spanish | aleación de acero |
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| Catalan | aliatge d'acer |
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